Control key for extension adapter
US5109685A · kind A · utility
9Cited by
21References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1991 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Apr 15, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7831
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A bitted substantially rigid extension adapter is provided which may be applied to an existing operating key thereby forming a control key assembly. The extension adapter is provided with fasteners for secure attachment to an operating key. The extension adapter may be made of metal. The bitted portion of the adapter may activate one or more control tumblers in a removable locking core housed within a locking mechanism. The adapter and key, when combined, may be used to remove the locking core from the mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.